Themes

I've downloaded StyleXP recently, and would like to use one of it's themes on another pc. Does anyone know where I can find the location of where the themes are stored?
Also, how would I apply msstyle files to a system in order to change the current theme to the new one?

Try a diffrent one that uses a diffrent way like this 3 step method:
1. Run program to copy new dll to dllcache
2. Boot to Safe Mode command prompt only mode
3. Run these commands:
copy c:/windows/system32/uxtheme.dll c:/backup
copy c:/windows/system32/dllcache/uxtheme/dll c:/windows/system
and reboot the computer